Metal bottle cap machining surface treatment equipment and treatment method

Abstract

The invention discloses metal bottle cap machining surface treatment equipment and method, and particularly relates to the technical field of bottle cap machining, the metal bottle cap machining surface treatment equipment comprises a bottle cap conveying mechanism and a polishing mechanism, the bottle cap conveying mechanism comprises a conveying disc rotationally connected to a treatment rack, and the conveying disc is connected with multiple sets of fixing columns in an annular array; the fixing column is rotationally connected to the conveying disc, a fixing suction cup is connected to the fixing column, the fixing suction cup is intermittently connected with the negative pressure cavity and the pressurizing cavity, the polishing mechanism comprises a polishing frame arranged above the conveying disc, a slidable polishing belt is arranged on the polishing frame, and the polishing belt is in transmission connection with a driving structure on the polishing frame. The negative pressure cavity is formed below the conveying disc and used for fixing the bottle caps so that the bottle caps can be stably connected to the fixing columns in the polishing process, the bottle caps can be separated from the fixing columns through pressurization after polishing is completed, automatic fixing and discharging can be achieved, and the bottle caps can be efficiently treated.

Description

Technical Field

[0001] The invention relates to the field of bottle cap processing, and in particular to a surface treatment device and a treatment method for metal bottle cap processing. Background Art

[0002] Metal bottle caps include tinplate caps used for cans and beer bottles, and aluminum alloy caps used for liquor packaging. The processing flow of aluminum alloy bottle caps is raw material cutting, stamping, surface treatment, and finally testing and packaging. Surface treatment is to polish or brush the bottle caps to remove small defects on the surface of the bottle caps.

[0003] Bottle caps are processed using stamping equipment, with a production capacity of hundreds to thousands of pieces per minute. After cutting, the raw materials are sent into the mold for stamping and forming. When surface treatment is performed, the method of polishing one by one is difficult to meet production needs, resulting in reduced processing efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a surface treatment device and a treatment method for metal bottle caps to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A surface treatment device for metal bottle caps comprises a bottle cap conveying mechanism and a polishing mechanism. The bottle cap conveying mechanism comprises a conveying plate rotatably connected to a processing frame, a plurality of groups of fixed columns in an annular array are connected to the conveying plate, the fixed columns are rotatably connected to the conveying plate, a fixed suction cup is connected to the fixed column, the fixed suction cup is intermittently connected to a negative pressure chamber and a pressurizing chamber, and the polishing mechanism comprises a polishing frame arranged above the conveying plate, a slidable polishing belt is arranged on the polishing frame, and the polishing belt is drivingly connected to a driving structure on the polishing frame.

[0007] Preferably, the fixed column passes through the conveying disk and is rotatably connected to the conveying disk, the bottom end of the fixed column is flush with the bottom end of the conveying disk, the interior of the fixed column is hollow, the fixed suction cup is connected to the fixed column, the fixed column is located above the conveying disk and is coaxially fixedly connected to the gear, and the gear is meshed with the toothed plate fixed on the polishing frame.

[0008] Preferably, the fixed suction cup includes an upper suction cup inserted into the top of the fixed column, the bottom end of the upper suction cup is fixedly connected to the vertical plug, the bottom end of the vertical plug is connected to the support spring, the side of the vertical plug is in contact with the side plug, and the outer end of the side plug is connected to the side suction cup.

[0009] Preferably, the outer end of the vertical insert is connected to the side suction cup, and the middle is fixedly connected to the sealing disk, a through hole is provided on the sealing disk, and the inner end of the side insert is in contact with the vertical insert.

[0010] Preferably, the negative pressure chamber is slidably arranged at the bottom of the conveying plate, the bottom of the negative pressure chamber is connected to the negative pressure fan, the tail of the negative pressure chamber is connected to the pressurized chamber, and the cross-sections of the negative pressure chamber and the pressurized chamber are fan-shaped.

[0011] Preferably, the tops of both side surfaces of the negative pressure chamber extend into the sealing groove at the bottom of the conveying plate, the tops of both end surfaces of the negative pressure chamber are connected to elastic sealing plates, and the pressurized chamber has the same structure as the negative pressure chamber.

[0012] Preferably, the elastic sealing plates at the top of both end surfaces of the negative pressure chamber are located outside the negative pressure chamber, and the elastic sealing plates at the top of both end surfaces of the pressurized chamber are located inside the pressurized chamber.

[0013] Preferably, the polishing frame is connected to a polishing transmission shaft, a polishing belt is wound around the polishing transmission shaft, the polishing belt includes a connecting layer made of elastic metal, a polishing layer is coated on the outer side of the connecting layer, and the polishing frame is slidably connected to the adjusting transmission shaft.

[0014] Preferably, the driving structure includes a first transmission shaft coaxially fixedly connected to the output shaft of the polishing motor, the first transmission shaft is connected to a first worm, the first worm cooperates with a first worm wheel, the first worm wheel is coaxially fixedly connected to a second transmission shaft, the second transmission shaft is coaxially fixedly connected to a second worm, the second worm cooperates with a second worm wheel, the second worm wheel is coaxially fixedly connected to the polishing transmission shaft, the adjusting transmission shaft is rotatably connected to a bearing, the bearing is connected to a polishing frame through an adjusting spring, the polishing frame is rotatably connected to an adjusting screw, and the adjusting screw is threadedly connected to the bearing;

[0015] A processing method for surface processing equipment of metal bottle caps, wherein the bottle caps to be processed are inserted outside of fixed columns, and then the fixed columns rotate with a conveying disc until the fixed columns on the conveying disc are connected with a negative pressure chamber, the bottle caps are fixed on the fixed columns, the conveying disc rotates to make the bottle caps on the fixed columns contact with a polishing belt, and the fixed columns also rotate at the same time to make the bottle caps rotate, so that the sides of the bottle caps can be fully polished, the fixed columns placed in groups can polish multiple bottle caps at the same time during the rotation of the conveying disc, and after polishing is completed, the fixed columns are connected with a pressurizing chamber, so that the bottle caps after polishing can be automatically detached.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Multiple groups of rotatable fixed columns are arranged on the conveyor plate to connect the bottle caps to be processed, and then the polishing belt in the polishing mechanism is used to polish the side of the bottle caps. A negative pressure chamber is arranged under the conveyor plate to fix the bottle caps so that the bottle caps are stably connected to the fixed columns during the polishing process. After the polishing is completed, the bottle caps are separated from the fixed columns by pressurization, which can realize automatic fixing and unloading, and can efficiently process the bottle caps;

[0018] 2. The sides of the negative pressure chamber and the pressure chamber extend to the inside of the conveying plate, and the two end surfaces are connected with elastic sealing plates, so that the conveying plate is relatively sealed with the negative pressure chamber and the pressure chamber during rotation, so as to provide sufficient pressure to fix the bottle cap on the fixed column or detach from the fixed column;

[0019] 3. The fixing column is provided with an upper suction cup to cooperate with the side suction cup so that the bottle cap can be fixed on the fixing column, and the upper suction cup cooperates with the lower suction cup so that the side insert connected to the side suction cup can be rotated for bottle caps with different inner diameters, so that the side suction cup supports the inner wall of the bottle cap;

[0020] 4. The polishing belt is connected to the polishing drive shaft and the adjusting drive shaft. The tightness of the polishing belt can be changed by changing the position of the adjusting drive shaft, the polishing force can be adjusted, and the curvature of the polishing belt can be changed to adapt to bottle caps with different outer diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the conveying tray of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the polishing mechanism of the present invention;

[0024] Figure 4 It is a structural schematic diagram of a fixed column of the present invention;

[0025] Figure 5 is a cross-sectional view of a fixing column of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the negative pressure chamber of the present invention;

[0027] In the figure: 1. processing frame; 2. conveying plate; 3. fixing column; 31. upper suction cup; 311. vertical insert; 312. contact plate; 32. side suction cup; 321. side insert; 322. sealing plate; 33. gear; 34. supporting spring; 4. tooth plate; 5. polishing mechanism; 51. polishing motor; 52. first transmission shaft; 521. first worm; 53. second transmission shaft; 531. second worm; 532. first worm gear; 54. second worm gear; 55. polishing transmission shaft; 56. adjusting transmission shaft; 57. bearing; 58. adjusting spring; 59. adjusting screw; 6. negative pressure chamber; 61. negative pressure fan; 62. elastic sealing plate. DETAILED DESCRIPTION

[0028] Example 1

[0029] like Figure 1-6As shown, a surface treatment device for metal bottle caps includes a bottle cap conveying mechanism and a polishing mechanism 5. The bottle cap conveying mechanism includes a conveying disc 2 rotatably connected to a processing frame 1, and a plurality of groups of fixed columns 3 in a circular array are connected to the conveying disc 2. The fixed columns 3 are rotatably connected to the conveying disc 2, and a fixed suction cup is connected to the fixed column 3. The fixed suction cup is intermittently connected to a negative pressure chamber 6 and a pressurizing chamber. The polishing mechanism 5 includes a polishing frame arranged above the conveying disc 2, and a slidable polishing belt is arranged on the polishing frame. The polishing belt is transmission-connected to a driving structure on the polishing frame; the fixed column 3 passes through the conveying disc 2 and is rotatably connected to the conveying disc 2, and the bottom end of the fixed column 3 is flush with the bottom end of the conveying disc 2. The interior of the fixed column 3 is hollow, the fixed suction cup is connected to the fixed column 3, the fixed column 3 is located above the conveying plate 2 and is coaxially fixedly connected to the gear 33, the gear 33 is meshed with the toothed plate 4 fixed on the polishing frame; the fixed suction cup includes an upper suction cup 31 inserted into the top of the fixed column 3, the bottom end of the upper suction cup 31 is fixedly connected to the vertical plug 311, the bottom end of the vertical plug 311 is connected to the supporting spring 34, the side of the vertical plug 311 is in contact with the side plug 321, and the outer end of the side plug 321 is connected to the side suction cup 32; the outer end of the vertical plug 311 is connected to the side suction cup 32, and the middle part is fixedly connected to the sealing disk 322, the sealing disk 322 is provided with a through hole, and the inner end of the side plug 321 is in contact with the vertical plug 311.

[0030] When polishing the bottle cap, one end of the bottle cap opening is inserted downward on the fixed column 3, at this time, the bottom end of the fixed column 3 is connected to the outside, the inside of the fixed column 3 is in a normal pressure state, and the bottle cap is located on the fixed column 3 under the action of gravity; as the conveying plate 2 rotates, the bottom end of the fixed column 3 is located above the negative pressure chamber 6, and after the negative pressure fan 61 evacuates the air, the air pressure inside the fixed column 3 decreases, and the upper suction cup 31 in the fixed suction cup slides downward first, and under the action of the pressure difference, the upper suction cup 31 is attached to the top of the bottle cap, and during the downward pressing process of the upper suction cup 31, the abutment plate 312 fixed on the vertical insert tube 311 abuts against the inner end of the side insert tube 321, so that the side insert tube 321 and the sealing disk 322 rotate, and the outside The side insert tube 321 is propped up, so that the side suction cup 32 is in contact with the inner side of the bottle cap, which can play the top and lateral support for bottle caps with different inner diameters, so that the bottle cap and the fixed column 3 remain relatively stable. After the gear 33 fixedly connected to the fixed column 3 contacts the toothed plate 4, the fixed column 3 can be rotated with the rotation of the conveying disk 2, and the side of the bottle cap can be fully polished in cooperation with the polishing mechanism 5; after the polishing is completed, the fixed column 3 on the conveying disk 2 rotates to be located above the pressurized chamber. At this time, the internal pressure of the fixed column 3 increases, the side suction cup 32 and the upper suction cup 31 are separated from the bottle cap, and the elastic potential energy of the support spring 34 is released, and the pressure difference is cooperated to make the bottle cap bounce up and separate from the fixed column 3.

[0031] The sealing disk 322 is sealingly rotatably connected to the side of the fixed column 3, and the through hole set on the sealing disk 322 is connected to the side suction cup 32 through the side insert tube 321. The side suction cup 32 is rotatably connected to the outer end of the side insert tube 321. Under the action of gravity, the side suction cup 32 is facing the side, and when the bottle cap is not placed, the through hole on the side of the sealing disk 322 is attached to the side wall of the fixed column 3 and is in a sealed state. After the vertical insert tube 311 is pressed down, the multiple side suction cups 32 in a circular array on the fixed column 3 synchronously support the inner side of the bottle cap, so that the bottle cap and the fixed column 3 remain coaxial and the bottle cap and the fixed column 3 are relatively fixed.

[0032] Example 2

[0033] like Figure 1-6 As shown, a surface treatment device for metal bottle caps includes a bottle cap conveying mechanism and a polishing mechanism 5. The bottle cap conveying mechanism includes a conveying disc 2 rotatably connected to a processing frame 1, and a plurality of groups of fixed columns 3 in an annular array are connected to the conveying disc 2. The fixed columns 3 are rotatably connected to the conveying disc 2, and a fixed suction cup is connected to the fixed column 3. The fixed suction cup is intermittently connected to a negative pressure chamber 6 and a pressurizing chamber. The polishing mechanism 5 includes a polishing frame arranged above the conveying disc 2, and a slidable polishing belt is arranged on the polishing frame. The polishing belt and the driving structure on the polishing frame are connected. The negative pressure chamber 6 is slidably arranged at the bottom of the conveying disc 2, the bottom of the negative pressure chamber 6 is connected to the negative pressure fan 61, and the tail of the negative pressure chamber 6 is connected to the pressurization chamber. The cross-sections of the negative pressure chamber 6 and the pressurization chamber are fan-shaped; the tops of the two side surfaces of the negative pressure chamber 6 extend to the sealing groove at the bottom of the conveying disc 2, and the tops of the two end surfaces of the negative pressure chamber 6 are connected to elastic sealing plates 62, and the pressurization chamber has the same structure as the negative pressure chamber 6; the elastic sealing plates 62 at the tops of the two end surfaces of the negative pressure chamber 6 are located outside the negative pressure chamber 6, and the elastic sealing plates 62 at the tops of the two end surfaces of the pressurization chamber are located inside the pressurization chamber.

[0034] The negative pressure chamber 6 and the pressurized chamber are fixed on the processing frame 1, and the arc plates on both sides of the top of the negative pressure chamber 6 extend into the sealing groove at the bottom of the conveying disc 2. During the rotation of the conveying disc 2, the negative pressure chamber 6 is sealed and fitted with the conveying disc 2. The elastic sealing plates 62 made of metal fixedly connected at the tops of both ends of the negative pressure chamber 6 are attached to the bottom of the conveying disc 2. During the rotation of the conveying disc 2, the elastic sealing plates 62 are always attached to the bottom of the conveying disc 2 to ensure the sealing of the negative pressure chamber 6. The elastic sealing plates 62 of the negative pressure chamber 6 are turned outward, and under the action of the pressure difference, the fitting sealing plates and the conveying disc 2 are more closely fitted. The structure of the pressurized chamber is the same as that of the negative pressure chamber 6. The difference is that the bottom of the pressurized chamber is connected to the pressurized fan, and the elastic sealing plate 62 connected to the top of the pressurized chamber is turned inward.

[0035] Example 3

[0036] like Figure 1-6As shown, a surface treatment device for metal bottle caps includes a bottle cap conveying mechanism and a polishing mechanism 5. The bottle cap conveying mechanism includes a conveying disc 2 rotatably connected to a processing frame 1, and a plurality of groups of fixed columns 3 in an annular array are connected to the conveying disc 2. The fixed columns 3 are rotatably connected to the conveying disc 2, and a fixed suction cup is connected to the fixed column 3. The fixed suction cup is intermittently connected to a negative pressure chamber 6 and a pressurizing chamber. The polishing mechanism 5 includes a polishing frame arranged above the conveying disc 2, and a slidable polishing belt is arranged on the polishing frame. The polishing belt is transmission-connected to a driving structure on the polishing frame, and a polishing transmission shaft 55 is connected to the polishing frame. The polishing belt is wound around the polishing transmission shaft 55. The polishing belt includes a connecting layer made of elastic metal, and a polishing layer is coated on the outer side of the connecting layer. An adjusting transmission shaft 56 is slidably connected to the polishing frame; the driving structure includes a first transmission shaft 52 which is coaxially fixedly connected to the output shaft of the polishing motor 51, the first transmission shaft 52 is connected to the first worm 521, the first worm 521 cooperates with the first worm wheel 532, the first worm wheel 532 is coaxially fixedly connected to the second transmission shaft 53, the second transmission shaft 53 is coaxially fixedly connected to the second worm 531, the second worm 531 cooperates with the second worm wheel 54, the second worm wheel 54 is coaxially fixedly connected to the polishing transmission shaft 55, the adjusting transmission shaft 56 is rotatably connected to the bearing 57, the bearing 57 is connected to the polishing frame through the adjusting spring 58, the polishing frame is rotatably connected to the adjusting screw 59, and the adjusting screw 59 is threadedly connected to the bearing 57.

[0037] The polishing frame in the polishing mechanism 5 is fixed on the processing frame 1. When the polishing mechanism 5 is running, the polishing motor 51 drives the first transmission shaft 52 to rotate, and the first worm 521 fixedly connected to the first transmission shaft 52 rotates, driving the first worm wheel 532 connected to the polishing frame to rotate, and the second transmission shaft 53 coaxially fixedly connected to the first worm wheel 532 rotates, so that the second worm wheel 54 matched with the second worm 531 rotates, and the polishing transmission shaft 55 coaxially fixedly connected to the second worm wheel 54 rotates, so that the polishing belt rotates, and the polishing layer arranged on the outside of the polishing belt adheres to the bottle cap and polishes the bottle cap.

[0038] When bottle caps of different diameters are placed on the fixed column 3, the diameters of the arcs formed by the circumferential points of the bottle caps in a circular array are different. In order to make the polishing belt stick to the side of the bottle caps, the bearing 57 slides relative to the polishing frame by rotating the adjusting screw 59, thereby changing the tightness of the polishing belt, thereby changing the polishing pressure and maintaining the fit with the bottle caps when processing bottle caps of different diameters.

Claims

1. A surface treatment equipment for metal bottle caps, characterized by: The invention comprises a bottle cap conveying mechanism and a polishing mechanism (5). The bottle cap conveying mechanism comprises a conveying disc (2) rotatably connected to a processing machine frame (1). The conveying disc (2) is connected to a plurality of groups of fixed columns (3) in a circular array. The fixed columns (3) are rotatably connected to the conveying disc (2). The fixed columns (3) are connected to fixed suction cups. The fixed suction cups are intermittently connected to a negative pressure chamber (6) and a pressurizing chamber. The polishing mechanism (5) comprises a polishing frame arranged above the conveying disc (2). A slidable polishing belt is arranged on the polishing frame. The polishing belt is transmission-connected to a driving structure on the polishing frame.

2. The surface treatment equipment for metal bottle caps according to claim 1, characterized in that: The fixed column (3) passes through the conveying disc (2) and is rotatably connected to the conveying disc (2); the bottom end of the fixed column (3) is flush with the bottom end of the conveying disc (2); the interior of the fixed column (3) is hollow; the fixed suction cup is connected to the fixed column (3); the fixed column (3) is located above the conveying disc (2) and is coaxially fixedly connected to a gear (33); the gear (33) is meshed with a toothed plate (4) fixed on the polishing frame.

3. The surface treatment equipment for metal bottle caps according to claim 2, characterized in that: The fixed suction cup comprises an upper suction cup (31) plugged into the top of the fixed column (3); the bottom end of the upper suction cup (31) is fixedly connected to a vertical insertion tube (311); the bottom end of the vertical insertion tube (311) is connected to a support spring (34); the side surface of the vertical insertion tube (311) abuts against a side insertion tube (321); and the outer end of the side insertion tube (321) is connected to the side suction cup (32).

4. The surface treatment equipment for metal bottle caps according to claim 3 is characterized in that: The outer end of the vertical insert tube (311) is connected to the side suction cup (32), and the middle part is fixedly connected to the sealing disk (322). The sealing disk (322) is provided with a through hole. The inner end of the side insert tube (321) is in contact with the vertical insert tube (311).

5. The surface treatment equipment for metal bottle caps according to claim 1, characterized in that: The negative pressure chamber (6) is slidably arranged at the bottom of the conveying plate (2), the bottom of the negative pressure chamber (6) is connected to the negative pressure fan (61), and the tail of the negative pressure chamber (6) is connected to the pressurized chamber. The cross-sections of the negative pressure chamber (6) and the pressurized chamber are fan-shaped.

6. The surface treatment equipment for metal bottle caps according to claim 5, characterized in that: The tops of the two side surfaces of the negative pressure chamber (6) extend into the sealing groove at the bottom of the conveying plate (2), the tops of the two end surfaces of the negative pressure chamber (6) are connected to elastic sealing plates (62), and the pressure chamber and the negative pressure chamber (6) have the same structure.

7. The surface treatment equipment for metal bottle caps according to claim 6, characterized in that: The elastic sealing plates (62) at the top of the two end surfaces of the negative pressure chamber (6) are located outside the negative pressure chamber (6), and the elastic sealing plates (62) at the top of the two end surfaces of the pressurized chamber are located inside the pressurized chamber.

8. The surface treatment equipment for metal bottle caps according to claim 1, characterized in that: The polishing frame is connected to a polishing transmission shaft (55), a polishing belt is wound around the polishing transmission shaft (55), the polishing belt comprises a connection layer made of elastic metal, a polishing layer is coated on the outer side of the connection layer, and the polishing frame is slidably connected to an adjustment transmission shaft (56).

9. The surface treatment equipment for metal bottle caps according to claim 8, characterized in that: The driving structure comprises a first transmission shaft (52) coaxially fixedly connected to the output shaft of the polishing motor (51); a first worm (521) is connected to the first transmission shaft (52); the first worm (521) cooperates with a first worm wheel (532); the first worm wheel (532) is coaxially fixedly connected to the second transmission shaft (53); the second worm (531) is coaxially fixedly connected to the second transmission shaft (53); the second worm (531) cooperates with a second worm wheel (54); the second worm wheel (54) is coaxially fixedly connected to the polishing transmission shaft (55); the adjusting transmission shaft (56) is rotatably connected to a bearing (57); the bearing (57) is connected to a polishing frame via an adjusting spring (58); the polishing frame is rotatably connected to an adjusting screw (59); the adjusting screw (59) is threadedly connected to the bearing (57).

10. A processing method for a metal bottle cap surface treatment device according to any one of claims 1 to 9, characterized in that; The bottle cap to be processed is inserted outside the fixed column (3), and then the fixed column (3) rotates with the conveying disc (2) until the fixed column (3) on the conveying disc (2) is connected with the negative pressure chamber (6), and the bottle cap is fixed on the fixed column (3). The conveying disc (2) rotates so that the bottle cap on the fixed column (3) contacts the polishing belt, and the fixed column (3) also rotates at the same time, so that the bottle cap rotates, and the side of the bottle cap can be fully polished. The fixed columns (3) arranged in groups can polish a plurality of bottle caps at the same time during the rotation of the conveying disc (2). After the polishing is completed, the fixed column (3) is connected with the pressure chamber, and the bottle cap can be automatically detached after the polishing is completed.

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